Need a schematic for the switch that controls the exterior power
mirrors. Does any one know if the wiring is the same for all
C5's or are there year by year differences?

Thanks

ive mitchel manuals on the wiring but i never scanned and copied and posted.i can try if your jammed up.you may try public library,they sometimes have donated pro. manuals.the c5,s maybe all alike [wiring] but be safe and get the right year book